Rugged-Road Carbon Gravel E-Bike | Shimano GRX 1x11 & 625Wh Power Tube
Rugged-Road Carbon Gravel E-Bike | Shimano GRX 1×11 & 625Wh Power Tube

$5,499.00

999 in stock

Select options This product has multiple variants. The options may be chosen on the product page

Rugged-Road Carbon Gravel E-Bike | Shimano GRX 1×11 & 625Wh Power Tube

$5,499.00

Is S6DA C GRX 820 the best bikepacking ebike? We think so. Its Bosch Performance Line Speed drive system and 625Wh battery give you the freedom to take the scenic route more often and cover more ground between sunup and sundown. And the carbon frame with our Class 5 VRS™ design soaks up road vibrations to keep you comfortable during those long days in the saddle. Carry anything from your camping gear to your #CoffeeOutside kit with Tributary’s frame and fork cargo mounts. Shift and brake smoothly with Shimano’s GRX 820 components, designed for rugged gravel road use. If you’re on the hunt for a bikepacking ebike — or just curious about the possibilities — S6DA should be on your packing list.

  • Meets UL 2849, and UL 2271 certification
Warning:For purchasing inquiries, please contact us
SKU: TSP108 Categories: , Tag: Brand:
Frameset
FrameTributary Carbon
ColorDark Pine/Terra Orange
ForkTributary Carbon
Rear ShockN/A
Components
HeadsetAcros
SeatpostTranzX dropper post, 100 mm travel
StemSalsa Guide Trail
Grips/Bar TapeVelo anti-slip
SaddleWTB SL8
HandlebarSalsa Cowchipper
Lights IncludedNo
Drivetrain
Front DerailleurN/A
Rear DerailleurShimano GRX RX822
CassetteShimano Deore M6100, 10–51t, 12-speed
Drive TypeMid-drive
ChainShimano Deore M6100
CranksetFSA CK-762, 42t
ShifterShimano GRX RX820
Brake LeversShimano GRX RX820
Brake CalipersShimano GRX RX820
Assist Levels4
RotorsShimano RT64
Drive UnitBosch Performance Line Speed
Ebike ClassificationClass 3
Max Assist Speed28 mph/45 kmh
Motor Torque85Nm
Max Motor Assist340% up to 600W
Battery Capacity Watt Hours625Wh
Battery TypeBosch PowerTube 625
Removable BatteryRemovable for service
Battery Power Volts36V
Battery Capacity Amp Hours16.7Ah
Estimated Charge Time5.4 hours
Charger IncludedYes
Range Estimate25–100 miles
ThrottleNo
Walk AssistYes
Wheels
Front TireTeravail Ehline 29 x 2.3″, Durable casing
Rear TireTeravail Ehline 29 x 2.3″, Durable casing
Front HubShimano TC500 15 x 110mm
Rear HubShimano TC500 12 x 148mm
RimWTB ST i27 (taped, tubeless valves included)
Weight
Complete Bike42 lb 9 oz for Medium
SizeX-SmallSmallMediumLargeX-Large
A. Effective Top Tube535560585610635
B. Stand Over725.1729.7775808.9827.4
C. Reach373.7398.7417.6437.6457.7
D. Stack601.8601.8624.8643.2661.7
E. Total Seat Tube Length380405460500520
F. Headtube Length100100125145165
G. Headtube Angle6767676767
H. Seat Tube Angle7575757575
I. BB Drop7070707070
J. BB Height303303303303303
K. Chainstay Length445445445445445
L. Fork Length Axle to Crown498.4498.4498.4498.4498.4
M. Fork Offset5151515151
N. Wheelbase1094.41119.411481175.81203.7
Crank Arm Length165165170170170
Handlebar Width4446485052
Recommended Rider Height155.0 – 163.0163.0 – 170.0170.0 – 178.0178.0 – 185.0185.0 – 193.0
Stem Length5050505050
Measurements based on:
  • An unsprung bike (no sag)
  • A 29 x 2.3″ tire measuring 747 mm in diameter
  • Standover (B) for all sizes is measured vertically to top of toptube from a position

Frame Specs

Design Wheel/Tire Sizes29″
Max Tire Outer DiameterTire Clearance Frame:29 x 2.5″ Tire Clearance Fork:29 x 3.0″
Frame ConstructionCarbon
Fork ConstructionCarbon
Suspension Fork Length (Travel)498mm A2C (120mm travel)
Fork Offset51mm
Rear Spacing12 x 148mm
Rear Axle SizeM12 x 175mm, TP=1.0, TL=14mm
Rear Brake (Rotor)Flat Mount
Front Brake (Rotor)180mm
Headset – UpperIS52
Headset – LowerIS52
Front Spacing15 x 110mm
Front Axle Size15 x 135mm, TP=M15 x 1.5
Steerer Tube28.6mm
Crown Race1.5″
Seatpost30.9mm
Dropper Post CompatibleYes, internal
Seatpost Clamp35mm
Front Derailleur ClampN/A
Front Derailleur TypeN/A
Derailluer HangerSRAM UDH
Crankset (Max Ring)42t (52mm)
Accessory MountsRack Mounts Frame:Yes Fender Mounts Frame:Yes Downtube Accessory Mounts:None Fender Mounts Fork:Yes, with adapter
Bottle MountsFrame:2 Fork:2
Size

L, M, S, XL, XS

Frequently Asked Questions

1.Do you provide OEM manufacturing services for private brands?

Yes. Sunremo has over 20 years of experience in OEM manufacturing, delivering premium-quality customized bicycle frames for global brands. From material selection to final quality inspection, every step follows strict manufacturing standards to ensure consistency, reliability, and long-term performance.

2.Can you develop a custom frame design exclusively for our brand?

Absolutely. We offer both OEM and ODM solutions. Whether you already have drawings or need full product development from concept, our engineering team supports geometry design, layup optimization, prototyping, testing, and mass production — ensuring your product stands out in both performance and branding.

3.Do you work with small or emerging brands?

Yes. We partner with brands of all sizes, from startups to established international companies. Our flexible production system allows scalable order quantities while maintaining the same quality standards and technical support.

4.What is your minimum order quantity (MOQ)?

MOQ depends on the model and customization level.
Standard models: The standard MOQ is 100 pieces
Full custom ODM projects: discussed based on tooling and development scope
Please contact us for an accurate quotation.

5.Can you provide samples or prototypes before mass production?

Yes. We strongly recommend sample validation before bulk production.
Prototype lead time is usually 20–45 days, depending on complexity and testing requirements.

6.What quality standards and certifications do you follow?

Our frames are manufactured under strict quality management systems.
Products can be tested and certified according to ISO, EN, and UCI standards upon request, ensuring compliance with international safety and performance requirements.

7.What warranty do you offer?

Sunremo provides a 2–5 year structural warranty depending on the frame model and application. Detailed warranty terms are supplied with each project.

8.What payment methods do you accept?

We accept secure and flexible payment methods including T/T, L/C, D/P, D/A, PayPal, and bank transfer.

9.How long is production and delivery time?

Production time depends on order volume and customization level:

10.Why choose Sunremo as your manufacturing partner?

✅ Direct factory with stable production capacity

✅ Advanced carbon fiber manufacturing expertise

✅ Strict QC and traceability system

✅ Flexible OEM/ODM cooperation model

✅ Competitive pricing with premium quality

✅ Professional international communication support

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